Question: It was observed that a tennis ball when served horizontally 7.5 above the ground strikes the smooth ground at B 20 ft away. Determine the

It was observed that a tennis ball when served horizontally 7.5 above the ground strikes the smooth ground at B 20 ft away. Determine the initial velocity vA of the ball and the velocity vS (and θ) of the ball just after it strikes the court at B. Take e = 0.7.

7.5 A 8

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